Core Tip: The high-frequency quenching machine is a heat treatment method that uses a high-frequency current to locally heat and cool the surface of the workpiece to obtain a surface hardened layer.
Because of local heating, it can significantly reduce quenching deformation and reduce energy consumption. It is precisely because the high-frequency quenching machine has these characteristics that it is widely used in the machining industry.
The heating principle of the high-frequency quenching machine: the induction hardening of the high-frequency quenching machine, the engineer explained that the principle of induction heating is: the workpiece is placed in the inductor, and the sensor is generally input to the intermediate frequency or high-frequency alternating current (1000-300000 Hz or higher). Hollow copper tube. The alternating magnetic field generates an induced current of the same frequency in the workpiece. The induced current is uneven in the distribution of the workpiece, strong on the surface, and weak inside, to the core close to 0, using this skin effect The surface of the workpiece can be heated rapidly, and the surface temperature rises to 800-1000oC in a few seconds, while the core temperature rises little.
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Label: Heating method and principle of high frequency quenching machine
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